Roll paper rewinding means for business machines



B. A. RUNDE 2,843,247

ROLL PAPER REWINDING MEANS FOR BUSINESS MACHINES July 15, 1958 2Sheets-Sheet 1 Filed April 12. 1954 IN V EN TOR. Brio/v A. Pal/v05 4, HTTOR/VEKS July 15, 1958 B. A. RUNDE ROLL PAPER REWINDING MEANS FORsusmsss MACHINES Filed April 12. 1954 2 Sheets-Sheet 2 Qmm I NVENTOR.BYRON A PuNDE BY 55 I 2 ATTORNE .S

United States Patent ROLL PAPER REWINDING, MEANS FoR BUSINESS MACHINESByron A. Runde, Farniingto'n, Mich., assignorto Burroughs Corporation,Detroit, Mich, a corporation of Michigan Application April 12, 1954,Se'rialNo. 422,331 Claims. (Cl. 197 -133) This invention relates toimprovements in roll paper rewinding means for printing businessmachines having intermittently laterally moving paper carriages.

An object of the invention is to provide a compact, automaticallydriven, roll paper rewinding device which is readily and convenientlydetachably securable to the traveling paper carriage of a printingbusiness machine such as an accounting or bookkeeping machine.

A further object of the invention is to provide a roll paper rewindingmeans for a business machine having a movable paper carriage and meanstot intermittently move said carriage, which rewinding means is readilymountable on the paper carriage and, solely by reason of being mountedon said earriage and movable therewith, is automatically powered by saidcarriage moving means, t it A further object is to provide aself-contained, roll paper rewinding means including an inertia actuateddrive means. r

Further objects and advantages of the invention will be apparent fromthe following description and the accompanying drawings in which:

Fig. 1 is a right side elevation of a preferred form of the inventionapplied to the traveling paper carriage er an accounting machine withportions broken away to reveal internal structure.

Fig. 2 is a perspective of the paper rewinding means of Fig. 1. j N

Fig, 3 is an exploded perspective of portions of the rewind drive means;and

Fig. 4 is an exploded perspective of a mounting hinge for the carriagecover panel carrying the rewinding means. a

The drawings show the invention as applied, by way of example, to thepaper carriage of an accounting machine of the kind shown in Patent No.2,629,549 of Thomas M. Butler, the illustrated paper carriage beingsubstantially the same as that of the Butler patent except ashereinafter indicated, and intermittently moved in the tabulating andreturn directions across the machine as disclosed in said patent. Thoseelements of the machine of the Butler patent which are shown in theaccompanying drawings and referred to hereinafter are identified by thesame reference numerals, below 2600, by which they are designated in thepatent, whereas new elements disclosed herein are designated byreference numerals above 3300.

The invention may be employed for rewincling roll paper 3301 after ithas passed around the platen roller 1056 (Fig. 1) from a supply roll3302. The record may be a continuous journal, a tally or proof or otherrecord strip but, for convenience, will be referred to hereinafter as ajournal; When the data recorded on the journal 3301 is wholly or partly.carbon copy of entries printed by the machine on papers, such as ledgerand statement forms, front-fed into the carriage in overlying relationto the journal paper 3301 passing around the platen, a carbon web 3303(Fig. 2) will overlie the journal paper 3301 and may be suppliedinterwound with 2,843,247 Patented July 15, 1958 the journal paper inthe supply roll 3302. Such c'arbon paper may beto'rn off in shortlengths after it emerges rearwardly from above the platen or it may berewoundtogeth'erwith the journal paper 3301 for later separationtherefrom and possible re-use.

The journal supply roll 3302 is carried on a rod 3305 (Fig. 1) supportedat its ends in V notches in the upper edges of small plates 3306 securedto the inward faces of two small vertical plates 1174 of a rear paperguide assembly readily detachably supported on the ends of studs 1175and 1178 secured to and extending inwardly from the carriage fra'rneside plates 1069 and 1070.

l The journal rewind means is detachably carried on the upper side of acarriage casing cover panel 3310 which extends transversely between therear portions of the carriage frame side plates 1069 and 1070, coveringthe rear portion of the carriage and the journal supply roll 3302. Ateach side, just rearwardly of its down-turned front edge, the coverpanel 3310 is secured upon the inwardly bent upper arms of a pair oflevers 3311 (Figs. 1 and 4), only the rightward one of which is shown.The downwardly extending portions of the levers 33.11 are formed withkeyed openings (Fig. 4) fitting over complementarily keyed reduced innerends of short shafts 3312 to which they are secured by the heads ofscrews threaded into the inner ends of said shafts. The shafts 3312extend through journal bushings secured in the plates 1069 and 1070 andhave, outwardly of said plates, enlarged portions which bear against theouter faces of said bushings. i A reduced outer end portion of eachshaft 3312 is spun into the upper end of an arm 3315, the lower end ofwhich carries a roller stud 3316 engaged by a detent cam portion of theforward arm of a bell crank lever 3317 pivotally supported on a stud3318 secured in the respective plate 1069 or 1070. The bell cranks 3317are urged clockwise by tension springs 3319 connected between'the reararms of said bell cranks and studs secured in the respective plates 1069and 1070'.

Whenthe hinged cover panel 3310 is in lowered closed position as shownin Fig. 1, the forwardly inclined portion of the cam edge of the forwardarms of the bell cranks 3317 is pressed againstthe roller 3316 toyieldingly'hold the panel 3310 in closed position, but when the panel isswung counter-clockwise from its closed position of Fig. 1, the roller3316 cams the bell crank 3317 counterclockwise slightly as the rollerpasses the apex of said cam edge, after which the springs 3319 re turnthe bellcranks 3317 clockwise, pressing the rollers .3316 rearwardly andthe arms 3315 and shafts 3312 counterclockwise to hold the cover panel3310 yieldingly in its raised open position to permit insertion of aroll of :journal paper and the threading thereof around the platen 1056.QOpening movement of the hinged panel 3310 is stopped at the positionindicated in dot-dash lines in Fig. 1 by engagement of the downward armsof the levers 3311 against studs 3314 projecting inwardly from thecarriage frame side plates 1069 and 1070.

To enclose the above-mentioned detent devices located on the outer sidesof the carriage frame end plates, the small casing side members coveringthe central por tions of the outer sides of the carriage frame endplates 1069 and1070 in the Butler patent (and there numbered 83) arereplaced by larger side casing members 3320 and 3321, each having aperipheral inwardly turned flange 3322 and 3323 respectively, abuttingagainst the outer face of the respective carriage frame end plate 1069or 1070 along lower edge of the latter and extending across and inwardlybeyond the remainder of the edge of said plate. Stops 3324011 eachcasing side member abut against the outer face of the respective plate1069 or 1197 031; its upper edge. Each casing membe13320 or 3321 is secured to the respective plate 1069 or 1070,

by a headed screw 3325 passing through the end plate from the inwardside thereof and threaded into a spacing boss 3326 extending inwardlyfrom the inner side of the casing member.

The edge of the rearward upper portion of the inturned flange 3322 or3323 of each side casing member is flush with and substantially meetsthe respective side edge of the hinged cover panel 3310 except at thedownwardly turned front edge of the latter and has a lug 3327 bent firstdownwardly and then inwardly and provided with sleeve 3328 of rubber orother resilient cushioning material to stop and support the rearwardportion of the cover panel when the latter is lowered to closedposition. A further inwardly extending portion of the flange 3322 or3323 of each side casing cover member forwardly of the hinged coverpanel 3310 is turned down adjacent the front end of the cover panel. Therewinding means is supported on the rearward portion of the hinged panel3310 by a pair of standards 3330 preferably formed of molded plastic andeach comprising an upright plate portion 3331 substantially flat exceptfor a thickened reinforcing margin 3332 and a laterally inwardlyextending foot portion 3334 having on its lower face a laterallyextending rib 3335 extending a short way into the upwardly open narrowpart of an inverted T-section slot 3336 (Fig. 1) formed in the rearportion of the hinged panel 3310 and extending from side to sidethereof. The remainder of the lower face of the foot portion 3334conforms to the curvature of the upper face of the hinged panel adjacentthe slot 3336. A knurled nut 3337 of large diameter, part of whichextends through a slot 3338 in the standard 3330 to make a portion ofits knurled circumferential edge accessible at the outer side of thestandard, is threaded onto the free end of a screw 3339 which passesfreely through a hole in the foot portion 3334 and is secured at itsother end to rectangular key-plate 3340 having a free sliding fit in thewide bottom portion of the inverted T-slot 3336. After inserting thekey-plates 3340 into the slot 3336, the standards 3330 may be shiftedtransversely across the rear top of the hinged panel 3310 to the desiredpositions where they may be readily secured by rotating the knurled nuts3337 to pull up the screws 3339 and key-plates 3340.

In about the center of the upright portion 3331 of each standard thereis a bearing bushing 3345 (Figs. 2

and 3) having at one end an enlarged diameter flange abutting one sideface of the standard and spun into a collar tightly engaging theopposite side face of the standard. The two bearing bushings 3345rotatably support a rewinding spindle comprising a shaft 3346 and aplurality of rods 3347 secured at their ends in a pair of circularplates 3348 having axially outwardly extending, shouldered hubs 3349pinned to the shaft 3346. The portions of said hubs 3349 of the lesserdiameter are rotatably supported in the bearing bushings 3345, and suchsmaller diameter portion of the rightward one of the hubs 3349 extendsconsiderably beyond the outer side of the rightward bearing bushing3345. The rewinding spindle is also provided with a pair of adjustablepaper edge guides each comprising a circular plate 3350 with a hub 3351axially slidably fitted on the shaft 3346. Each guide plate 3350 hasapertures freely passing the rods 3347. After adjustment of the guideplates 3350 along the spindle to suit the width and position of thepaper web to be wound thereon, the guide plates may be secured inaxially adjusted position by means of thumb screws 3352 threaded intotapped holes extending through the hubs 3351 into the axial borestherein.

The right hand end portion of the shaft 3346 extends substantiallybeyond the rightward end of the rightward hub 3349 and freely rotatablysupports a ratchet wheel 3355 which is pressed into frictional drivingengagement with the end of said hub 3349 by a helical spring 3356compressed between the ratchet wheel- 3355 and a collar 3357 adjustablysecuredon the end portion of the shaft 3346 by means of a set screw. Thetoothed periphery of the ratchet wheel 3355 cooperates with a drive pawl3358 pivoted on a stud carried by a lever 3359 having a hub freelyrotatable on the projecting portion of the right hand hub 3349 betweenthe ratchet wheel 3355 and the right hand bearing bushing 3345. Thedrive tooth of the pawl 3358 is yieldingly pressed against the toothedperiphery of the ratchet wheel 3355 by a tension spring 3360 connectedbetween a stud on the pawl and a stud secured in the lever 3359. A checkpawl 3361 also cooperating with the teeth of the ratchet wheel 3355 ispivoted on the end of a stud 3362 secured to a bracket 3363. Its checktooth is pressed against the ratchet by a tension spring 3364 connectedbetween a stud secured in the check pawl 3361 and another stud carriedby the bracket.

The bracket 3363 has a portion secured fiat against the rightward faceof the right hand standard 3330 by screws and nuts and has an arm 3365which extends first rightwardly and then upwardly. The upwardlyextending portion of the arm has a hole freely fitting the rightward endof the shaft 3346. It also has, at its rear edge, a lug bent leftwardlyand carrying a stud 3366 on which is pivoted a bell crank having aleftward arm 3367 loosely engaging in a slot in the lever 3359 and adownward arm 3368 having on its lower end a weight 3369 formed of alarge headed screw passing through a hole in the arm 3368 and threadedinto a large cap nut.

The just-described inertia actuated drive mechanism, except for theweight 3369 and arm 3368, is enclosed in a generally cylindrical casing3370 held with its open end edge against the standard 3330 by means of aheaded screw 371 passing through the closed end of the casing 3 andthreaded into the upright part of the bracket arm 3365. The casing 3370has a slot 3372 to permit free oscillation of the arm 3368, said slotbeing maintained in proper alignment with the arm 3368 by a lug 3373 ofthe bracket 3363 engaging in the open end of said slot.

The paper web 3301 drawn forwardly over and between the journal guides1223, 1226, from the supply roll 3302 with or without a carbon web 3303may be threaded forwardly under, upwardly in front of and rearwardlyover the platen 1056, between the latter and several sets of pressurerollers and guides 1106, 1115, 1118, 1132, 1172, etc., in the mannerexplained in the Butler patent. The free end of the web or webs 3301 or3301 and 3303 may be drawn rearwardly and passed around one of the rods3347 to which it or they may be secured in any suitable manner as bymeans of a staple 3375, a pin or a bit of pressure sensitive adhesivetape.

it will readily be apparent that rapid acceleration and deceleration ofthe paper carriage in the beginning and end portions of its tabulatingand return movement transversely of the machine will cause the weightedarm 3368 to swing and, through the arm 3367, to oscillate the lever3359. As the latter rocks counterclockwise, the ratchet drive pawl 3358will slip over the teeth of the ratchet wheel 3355 while the latter isheld against counterclockwise-rotation by the check pawl 3361, but whenthe arm 3359 rocks clockwise, the drive pawl 3358 will drive the ratchetwheel 3355 clockwise. The ratchet wheel, through its frictionalengagement with the end of the right hand hub 3345, will drive therewinding spindle to rewind the journal or other paper web 3301 wheneverthere is any slack in the paper between the platen roller 1056 and therewinding spindle. The torque applied to the rewinding spindle by theratchet wheel 3355 may be regulated by adjusting the collar 3357 andthus adjusting the compression of the spring 3356'so that the paper willbe rewound sufficiently tightly but without causing it to slip about theplaten roller.

I claim:

.1. Roll paper rewinding means for a business machine having anintermittently movable paper carriage, comprising supporting meansmountable on said carriage, a weighted member mounted on said supportingmeans for oscillatory inertial movement relative thereto to responsiveto the intermittent movements of said supporting means with thecarriage, a paper rewinding spindle rotatably mounted on said supportingmeans, and unidireotional driving means actuated by said weighted memberas it oscillates and having a driving connection with said spindle torotate the latter.

2. Roll paper rewinding means for a business machine having anintermittently movable paper carriage, comprising supporting meansmountable on said carriage for movement therewith, a weighted membermounted on said supporting means for oscillatory inertial movementrelative thereto responsive to the intermittent movements of saidsupporting means with the carriage, a paper rewinding spindle rotatablymounted on said supporting means, unidirectional driving means actuatedby said weighted member as it oscillates, and a frictional drivetransmission between said driving means and said spindle.

3. Roll paper rewinding means for a business machine having anintermittently movable paper carriage, comprising supporting meansmountable on said carriage for movement therewith, a weighted membermounted on said supporting means for oscillatory inertial movementrelative thereto responsive to the intermittent movements of thecarriage, a paper rewinding spindle rotatably mounted on said supportingmeans, unidirectional driving means actuated by said weighted member asit oscillates, and a frictional drive transmission between said drivingmeans and said spindle including a pair of frictionally engaged drivetransmission elements and yielding means pressing one of said elementsagainst the other.

4. Roll paper rewinding means for a business machine having anintermittently movable paper carriage, comprising supporting meansmountable on said carriage for movement therewith, a weighted membermounted on said supporting means for oscillatory inertial movementrelative thereto responsive to the intermittent movements of thecarriage, a paper rewinding spindle rotatably mounted on said supportingmeans, unidirectional driving means actuated by said weighted member asit oscillates and a frictional drive transmission including elementsconnected with said driving means and with said spindle respectively,spring means pressing one of said elements into frictional drivingengagement with the other of said elements, and means to adjust saidspring means to vary the pressure of said one of said elements againstthe other.

5. Roll paper rewinding means for a business machine having anintermittently movable paper carriage, comprising supporting meansmountable on said carriage for movement therewith, a pendulum pivotallymounted on said supporting means for oscillation relative theretoresponsive to the intermittent movements of the carriage and in a planeparallel to said movements, a paper rewinding spindle rotatably mountedon said supporting means, unidirectional driving means actuated by saidpendulum as it oscillates, and a frictional drive transmission betweensaid driving means and said spindle.

6. Roll paper rewinding means for a business machine having anintermittently movable paper carriage, comprising supporting meansmountable on said carriage for movement therewith, a pendulum pivotallymounted on said supporting means for oscillation relative theretoresponsive to the intermittent movements of the carriage and in a planeparallel to said movements, a paper rewinding spindle rotatably mountedon said supporting means, a ratchet Wheel having a yielding driveconnection with said spindle, a drive pawl actuated by said pendulum asthe latter oscillates and cooperating with said ratchet wheel to rotatethe latter, and means to check retrograde rotation of said ratchetwheel.

7. Roll paper rewinding means for a business machine having anintermittently movable paper carriage, comprising a pair of supportingstandards mountable on said carriage for movement therewith, a bracketcarried by one of said standards, a pendulum pivotally mounted on saidbracket for oscillation relative thereto responsive to the intermittentmovements of the carriage and in a plane parallel to said movements, ashaft supported in said standards, a paper rewinding spindle rotatablymounted on said shaft, a ratchet wheel rotatable on said shaft andhaving a frictional driving engagement with a portion of said spindle, adrive pawl actuated by said pendulum as the latter oscillates andcooperating with said ratchet wheel to rotate the latter, and means tocheck retrograde rotation of said ratchet wheel.

8. Roll paper rewinding means for a business machine having a movablepaper carriage and means to intermittently move said carriage,comprising supporting means, means to detachably mount said supportingmeans on said carriage, a paper rewinding spindle rotatably mounted onsaid supporting means, unidirectional driving means having a drivingconnection with said spindle, and a weighted member mounted on saidsupporting means for inertial movement relative thereto responsive tothe intermittent movements of said carriage and cooperating with saiddriving means to actuate the latter by said inertial movements of saidmember, whereby said rewinding means, when mounted on said carriage, isautomatically powered by carriage moving means.

9. In a business machine having a traveling paper carriage, and meansfor intermittently moving said carriage, the combination of means insaid carriage to sup port a roll of paper, a cover member mounted onsaid carriage for movement from a position in which it covers said rollof paper to a position in which it gives access to said paper, and apaper rewinding means mounted out- .wardly on said cover member andincluding an inertia operated drive means.

10. In a business machine having a traveling paper carriage, and meansfor intermittently moving said carriage, the combination of means insaid carriage to support a roll of paper, a cover member mounted on saidcarriage for movement from a position in which it covers said roll ofpaper to a position in which it gives access to said paper, a paperrewinding means including an inertia operated drive means, and meansdetachably mounting said rewinding means on said cover member outwardlythereof.

References Cited in the file of this patent UNITED STATES PATENTS2,074,097 Winter Mar. 16, 1937 2,510,626 Geisheck June 6, 1950 2,689,635Riddle et al. Sept. 21, 1954

